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.pi.-Complexes of tellurium(II) with 1,1-diarylethylenes. A reinvestigation

✍ Scribed by Engman, Lars

Book ID
126322936
Publisher
American Chemical Society
Year
1984
Tongue
English
Weight
262 KB
Volume
3
Category
Article
ISSN
0276-7333

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## Abstract In contrast to previous reports, 4‐ethoxy‐1,1,1‐trifluoro‐3‐buten‐2‐one (**1**) was observed to react with methylhydrazine (**2**) in refluxing ethanol to yield 1‐methyl‐3‐(trifluoromethyl)pyrazole (**6**) and 4,5‐dihydro‐1‐methyl‐5‐(trifluoromethyl)pyrazol‐5‐ol (**4**). The later compo